IT People, help me out :)

A dusty Atmosphere - Dust buildup inside, leading to increasing temp, could cause unstability of the OS, could lead to CPU fan not spinning, could lead to CPU burning out or repeated crashes (if the CPU has some burnout protection).

Excessive Vibration - Not sure on this one, but 'Excessive' vibrations could cause the hard drive heads to hit the platters, leading to data loss, corruption. maybe a CPU cooler/fan can pop off, again leading to CPU burnout or repeated crashes (if the CPU has some burnout protection).

Excessive heat - see above

Magnetic heat - what is that? If it is magnetism, it can cause data loss.